The real repair is to have the vehicle serviced by a Bentley dealer. The other option is as follows…
Press and hold the trip button
While doing this, turn the ignition key into the on position
Let go of both, and you will see the words “service reset” on the drivers instrument panel screen
Now press the silver knurled roller switch “OK” on the right side of the steering wheel controls, by the menu button. This will confirm the request.

Turn the ignition to run (one position before starting engine).
Display the oil life index on the Driver Information System.
Hold the RESET button for 5 seconds.
Turn the ignition off and then start the engine to verify the indicator has been reset.

1998

Turn the ignition to run (one position before starting engine).
Press the TRIP button on the Driver Information System (DIC) switch to view various menu choices and stop on OIL LIFE REMAINING.
Press and hold the RESET button on the DIC switch for more than 5 seconds. The oil life will change to 100%.
Turn the ignition off and then start the engine to verify the indicator has been reset.

Engine Oil Life Monitor
Turn the ignition to run (one position before starting engine).
Display the oil life index on the Driver Information System.
Hold the RESET button for 5 seconds. When a DIC message of RESET is displayed and the oil life index equals 100%, the reset is complete.
Turn the ignition off and then start the engine to verify the indicator has been reset.
Change Oil Soon
Turn the ignition to run (one position before starting engine).
Press OIL button and release.
Select OIL menu by pressing MODE button.
Press and hold the RESET button for 5 to 7 seconds.
Turn the ignition off and then start the engine to verify the indicator has been reset.

1996-1997

Turn the ignition to run (one position before starting engine).
Display the oil life index on the Driver Information System.
Hold the RESET button for 5 seconds.
Turn the ignition off and then start the engine to verify the indicator has been reset.

1998

Turn the ignition to run (one position before starting engine).
Press the TRIP button on the Driver Information System (DIC) switch to view various menu choices and stop on OIL LIFE REMAINING.
Press and hold the RESET button on the DIC switch for more than 5 seconds. The oil life will change to 100%. The engineoil life monitor is now reset.
Turn the ignition off and then start the engine to verify the indicator has been reset.

1999

Turn the ignition to run (one position before starting engine).
Press and hold the OIL RESET button in the IP storage compartment for at least 5 seconds, but no more than 60 seconds.
After 5 seconds, observe the CHANGE OIL SOON light flash 4 times before light turns off. This indicates that the engineoil life monitor system has reset.
Turn the ignition off and then start the engine to verify the indicator has been reset.

Oil Change Required
Your vehicle is equipped with an engine oil changeindicator system. The “Oil Change Required” message
will flash in the EVIC display for approximately 10
seconds after a single chime has sounded to indicate the
next scheduled oil change interval. The engine oil changeindicator system is duty cycle based, which means the
engine oil change interval may fluctuate dependent upon
your personal driving style.
Unless reset, this message will continue to display each
time you turn the ignition switch to the ON/RUN
position. To turn off the message temporarily, press and
release the MENU button. To reset the oil change indicator
system (after performing the scheduled maintenance)
refer to the following procedure.

1. Turn the ignition switch to the ON position (Do not
start the engine).

2. Fully depress the accelerator pedal slowly three times
within 10 seconds.

3. Turn the ignition switch to the OFF/LOCK position.

NOTE: If the indicator message illuminates when you
start the vehicle, the oil change indicator system did not
reset. If necessary repeat this procedure.